On 2008-08-25T08:38:19, Chris Conley <[EMAIL PROTECTED]> wrote:
> Sorry if I wasn't clear enough. EC2 is the cloud computing service provided
> by Amazon: http://www.amazon.com/gp/browse.html?node=201590011
> Basically, I have heartbeat running on two virtual machines in the EC2
> cloud. If one of them goes down, I must start a new virtual machine; the
> previous one no longer exists.
>
> So I have heartbeat correctly monitoring each of the virtual machines. I'm
> just stuck with how to configure heartbeat to start up a new virtual
> machine.
You can call a script on take-over, via haresources or the CIB
(recommended).
However, how do you handle split-brain scenarios? How to manage resource
fail-over? How to handle fencing? Have you given these questions
thought?
The right layer to handle availability of the virtual machines is the
layer which runs them; ie, EC2 must provide for this.
Regards,
Lars
--
Teamlead Kernel, SuSE Labs, Research and Development
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde
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